package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioClient minioClient;
    @Autowired
    private MinioProperties minioProperties;

    @Override
    public String uploadFile(MultipartFile file) throws ServerException, InsufficientDataException,
            ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException,
            InvalidResponseException, XmlParserException, InternalException {
        boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder()
                .bucket(minioProperties.getBucketName()).build());
        if (!bucketExists) {
            minioClient.makeBucket(MakeBucketArgs.builder()
                    .bucket(minioProperties.getBucketName())
                    .build());
            String config = """
                      {
                                                            "Version": "2012-10-17",
                                                            "Statement": [
                                                                {
                                                                    "Effect": "Allow",
                                                                    "Principal": "*",
                                                                    "Action": "s3:GetObject",
                                                                    "Resource": "arn:aws:s3:::%s/*"
                                                                },
                                                                {
                                                                    "Effect": "Allow",
                                                                    "Principal": "*",
                                                                    "Action": "s3:PutObject",
                                                                    "Resource": "arn:aws:s3:::%s/*"
                                                                }
                                                            ]
                                                        }
                    """.formatted(minioProperties.getBucketName(),minioProperties.getBucketName());
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder()
                    .bucket(minioProperties.getBucketName())
                    .config(config)
                    .build());
        }
        String objectName = new SimpleDateFormat("yyyy-MM-dd").format(new Date())
                + "/" + UUID.randomUUID().toString() + "-" + file.getOriginalFilename();
        minioClient.putObject(PutObjectArgs.builder()
                .bucket(minioProperties.getBucketName())
                .contentType(file.getContentType())
                .object(objectName)
                .stream(file.getInputStream(), file.getSize(), -1)
                .build());
        return String.join("/", minioProperties.getEndPoint(), minioProperties.getBucketName(), objectName);
    }
}
